Cistern and well pump casing.



J. s. SHEA. CISTERN AND WELLPUMP CASING. AISPLIOATION FILED DEOJA, 1908.

' 923,302, Patented. June 1,1909.

WITNESSES 6i QM Z Y INVENTOR. John 6. Shea.

ATTORNEY.

JOHN S. SHEA, OF BATCHTOWN, ILLINOIS.

GISTERN AND WELL PUMP CASING.

Specification of Letters Patent.

Patented June 1, 1909.

' Application filed December 14, 1908. Serial No. M51555.

To all whom it may concern:

Be it known that I, J OHN S. SHEA, citizen of the United States, residing at Batchtown, in the county of Calhoun and State of Illinois, have invented certain new and useful Improvements in Cistern and ell Pump Casings, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention has relation to improvements in cistern and well-pump casings, and it consists in the novel details of construction more fully set forth in the specification and pointed out in the claims.

In the drawings, Figure 1 is a vertical section of a conventional form of cistern showing my invention in front elevation (parts being broken) Fig. 2 is a horizontal section on the line 22 of Fig. 1 with lid of extension casing partly swung open; Fig. 3 is a vertical section on line 3-3 of 2; Fig. 4 is an enlarged section similar to Fig. 5, but with lid in closed position; and Fig. 5 is an enlarged section on line 55 of Fig. 2, showing the lid in dotted outline swung to full open position.

The object of my invention is to provide a pump-casing for wells and cisterns with an extension forming a compartment which may serve as a means for introducing and preserving articles of food such as milk, cream, butter, vegetables and the like, the articles being lowered into the cistern or well and suspended inproper position from the walls of said compartment. The latter too makes provision for the lowering of a ladder into a cistern when occasion arises to clean the same, without the necessity of disturbing or removing the pump casing all as will more fully appear from a detailed description of the invention which is as follows:

Referring to the drawings, WV, represents a cistern or well of conventional design above the throat T of which is mounted my improved casing. This consists of a pump compartment C provided with the usual chain-lift pump P, one lap of the chain operating through the conducting pipe a as usual. Forming a lateral extension of the compartment C is a compartment C considerably lower in height than the compartment C, said extension being provided on three sides with hooks h, h, h, from which may be suspended ropes 7' to which are secured the articles of food to be lowered and kept cool in the water of the cistern (or well). In the present case there is repre sented a milk-bucket B at the lower end of the rope 1*, the bucket being partially submerged in the water in the cistern. The extension C' too permits the lowering of a ladder L into the cistern when occasion arises to clean the same, and this without the necessity of removing the pump-casing as must be done with the prevailing pumps as now constructed. The cross-sectional area of the extension C should be such as to allow a man of ordinary size to pass through in descending the ladder.

One of the main features of the present invention resides in the lid 1 for closing the upper open end of the compartment C, the lid being a hinged one and controlled di rectly by the adjacent wall of the pump compartment C. The lid 1 is made of sheet metal (as is of course the entire pump-cas ing and extension thereof) folded along the edges for purposes of stiffening the same, the sides immediately adjacent to the hingeaxis thereof being bent in slightly and having lobes or ears 6 for the support of the pivot pins 2 which pass through openings in the side vertical walls of the extension G. The edges of the main body of the lid however, overlap the edges of the extension when the lid is closed. The hinge axis of the lid is removed a short distance from the adjacent wall to of the pump-compartment C, the lid curving inwardly at its rear end in the form of a lip or flange 3 which in the oscillations of the lid rides over and bears against said wall 'w.' This wall has a slight convexity imparting to the wall a certain amount of resilience or spring. hen the lid is closed (Fig. l) the flange 3 engaging as it does the wall 10, and describing a circular arc in the oscillation of the lid, forces the bulging-or convex wall inward, the line of contact between said wall and flange being substantially on a level with the hinge axis of the lid. As the lid is swung partially open (Figs. 1, 2, 3, 5) the wall w is relieved and its resiliency causes it to bulge outward again and thus follow up its contact with the free edge of the flange 3 as the latter is sweeping downward or descending; but in such descent the line of contact between the wall 10 and the flange drops considerably below the horizontal plane of the hinge axis of the lid, the pressure thus exerted against the flange being now more in line with the chord of the are described by the flange, or more at an angle to the plane of the lid. The pressure thus exerted against the flange 3 by the springy or resilient wall w forces the lid automatically to a full open position (dotted lines Fig. 5) once the lid is slightly raised, or lifted from its closed position. lVhen in its closed position, the pressure referred to is more in parallelism with the plane of the lid itself, or on the dead center as it were, and hence no movement of the lid can take place; but once the lid is slightly raised, the bulging or convex formation of the resilient wall w exerts a constant pressure on the flange or lip 3, thus automatically forcing the lid to full open position where it remains until closed. Thus the lid swings open automatically and easily upon a slight raising thereof, and instant access may be had to the compartment C for any of the purposes which. it subserves.

Having described my invention, what I claim is 1. A cistern-pump casing comprising a pump compartment and a lateral extension separated by a wall between the compartment and extension, and a lid for the extension engaging the aforesaid wall and controlled thereby, substantially as set forth.

2. A cistern-pump casing composed of a pump compartment and a lateral extension separated by a resilient wall convexed or bowed toward the extension, a lid hinged on top of the extension about an axis removed a suitable distance from the bowed wall, and a formation on the lid for engaging said wall, whereby the latter serves to automatically force the lid to a full open position upon a partial raising of the lid, substantially as set forth.

3. A cistern-pump casing composed of a pump compartment and a lateral extension separated therefrom by a resilient wall convexed toward the extension, a lid hinged on top of the extension about an axis removed a suitable distance from the convex wall, and a depending flange formed on the edge of the lid adjacent to the convex wall, whereby the latter serves to permanently bear against said flange and force the lid to a full open position upon a partial raising of said lid from its closed position, substantially as set forth.

In testimony whereof I affix my signature, in presence of two witnesses.

JOHN S. SHEA.

Vvitnesses EMIL STAREK, J os. A. MICHEL. 

